129 lines
3.3 KiB
C++
129 lines
3.3 KiB
C++
/*
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This file is part of Warzone 2100.
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Copyright (C) 1999-2004 Eidos Interactive
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Copyright (C) 2005-2011 Warzone 2100 Project
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Warzone 2100 is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Warzone 2100 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/***************************************************************************/
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/*
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* pieMode.h
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*
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* renderer control for pumpkin library functions.
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*
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*/
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/***************************************************************************/
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#include <GLee.h>
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#include "lib/framework/frame.h"
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#include <SDL.h>
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#include "lib/ivis_opengl/piedef.h"
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#include "lib/ivis_opengl/piestate.h"
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#include "lib/ivis_opengl/piemode.h"
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#include "piematrix.h"
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#include "lib/ivis_opengl/ivi.h"
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#include "lib/ivis_opengl/piefunc.h"
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#include "lib/ivis_opengl/tex.h"
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#include "lib/ivis_opengl/pieclip.h"
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#include "screen.h"
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/***************************************************************************/
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/*
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* Source
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*/
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/***************************************************************************/
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iSurface rendSurface;
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BOOL pie_Initialise(void)
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{
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pie_TexInit();
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/* Find texture compression extension */
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if (GLEE_ARB_texture_compression)
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{
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debug(LOG_TEXTURE, "Texture compression: Yes");
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wz_texture_compression = GL_COMPRESSED_RGBA_ARB;
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}
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else
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{
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debug(LOG_TEXTURE, "Texture compression: No");
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wz_texture_compression = GL_RGBA;
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}
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pie_MatInit();
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_TEX_INDEX = 0;
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rendSurface.width = pie_GetVideoBufferWidth();
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rendSurface.height = pie_GetVideoBufferHeight();
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rendSurface.xcentre = pie_GetVideoBufferWidth()/2;
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rendSurface.ycentre = pie_GetVideoBufferHeight()/2;
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rendSurface.clip.left = 0;
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rendSurface.clip.top = 0;
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rendSurface.clip.right = pie_GetVideoBufferWidth();
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rendSurface.clip.bottom = pie_GetVideoBufferHeight();
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pie_SetDefaultStates();
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debug(LOG_3D, "xcentre %d; ycentre %d", rendSurface.xcentre, rendSurface.ycentre);
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return true;
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}
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void pie_ShutDown(void)
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{
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pie_CleanUp();
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}
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/***************************************************************************/
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void pie_ScreenFlip(int clearMode)
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{
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GLbitfield clearFlags = 0;
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screenDoDumpToDiskIfRequired();
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SDL_GL_SwapBuffers();
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if (!(clearMode & CLEAR_OFF_AND_NO_BUFFER_DOWNLOAD))
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{
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glDepthMask(GL_TRUE);
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clearFlags = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT;
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if (clearMode & CLEAR_SHADOW)
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{
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clearFlags |= GL_STENCIL_BUFFER_BIT;
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}
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}
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if (clearFlags)
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{
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glClear(clearFlags);
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}
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if (screen_GetBackDrop())
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{
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screen_Upload(NULL, screen_getMapPreview());
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}
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}
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/***************************************************************************/
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UDWORD pie_GetResScalingFactor(void)
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{
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if (pie_GetVideoBufferWidth() * 4 > pie_GetVideoBufferHeight() * 5) {
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return pie_GetVideoBufferHeight()*5/4/6;
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} else {
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return pie_GetVideoBufferWidth()/6;
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}
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}
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